No, it doesn't include the sponsor's part. The posted processing times mean how long the visa office will take since the day they receive the application.
The sponsors part is processed within Canada so on the CIC website, you will find that timeline under "in Canada" section, see http://www.cic.gc.ca/english/information/times/canada/process-in.asp#sponsorship and right now it's 44 days.
The rest of the application is processed in another country and so is found under the "outside Canada" section, see http://www.cic.gc.ca/english/information/times/international/05-fc-spouses.asp